Category Archive: 1320 Engine Tech, 1320 Tech Story, Apex Engine Tech, Apex Tech Stories, ENGINE, ENGINES, TECH, Tech Stories, Videos, XL Engine Tech, XL Spotlight, XL Tech Stories

WHAT MAKES MORE HP ON A JUNKYARD 4.8L LS? CARBS OR EFI? EDELBROCK PERFORMER RPM & 750 v TRUCK EFI

Ah, the age old Carb vs EFI story, but this time it is the 4.8 LS Carb vs EFI and both are great options. There are a lot of ways to get air and fuel into an LS engine with all the aftermarket parts,...

JUNKYARD LS TUNING SECRETS! A/F TEST-10:1 v 11:1 v 12:1 v 13:1. TIMING TEST-17, 20, 24, 29 DEGREES!

Air Fuel Ratio is the ratio of air to fuel that is going into the chambers of your engine. It is measured in the exhaust, after the combustion has happened, by measuring how much oxygen is left over...

The Alfarrari Project: The Engine Is Getting More Love And Test Fitting The Engine And Gearbox!

It’s time for the engine to start getting ready to go in! More engine adapter work, then doing some stuff with the intake so it will fit, and then actually test fitting this bad boy! If this...

HOW MUCH POWER IS CAM LIFT WORTH? BTR TRUCK NORRIS VS TRUCK NORRIS NSR LOW LIFT. DOES LIFT MAKE HP?

Camshafts, regardless of the engine platform, have three measurements that define them. Lift, or the amount the camshaft will open the valves, duration which is the amount of time the camshaft will...

JUNKYARD LS PLUG GAP TEST. DOES MORE GAP EQUAL MORE POWER? HOW MUCH SHOULD I RUN? .010 VS .100 GAP

Spark plug gap is one of those things that some folks SWEAR makes a huge difference in power. It goes right along with the guys that think that indexing plugs is a big performance trick, but...

Single Seat Race Car Build Part 12: Rear Radius Rods And Framing Out The Cockpit!

In this latest installment of the build, the rear radius rods get sorted and the cockpit gets laid out. This isn’t a big car so all this stuff is important to get right the first time....

CHEAP, JUNKYARD 5.3L CAM TEST. BTR CAMSHAFT FAMILY FEUD-TRUCK NORRIS VS HOT ROD VS SS2? WHO WINS?

Who will reign supreme? It’s a battle of cheap 5.3 LS camshafts from Brian Tooley Racing. I can tell you which one I’d pick, but I’m going to let you watch and decide for yourself....

Piston Tech Talk: Mahle Motorsport Talks About Their Power Pak Piston For The Toyota Supra B58 Engine

As internal combustion engines become more highly refined and engineered (as they have been doing for 100+ years), the technology involved in hot rodding them continues to do the same. MAHLE...

The Alfarrari Project: The Nose Is Finally Going To Be Done! Then It’s Onto The Engine!

Once the nose is done then more work can be done on the engine that will be the heart of this beast! To get there the nose needs a bit of work to be finished and these two videos below are going to...

CHEAP, BROKEN, JUNKYARD 4.8L-WILL IT RUN? WITH SO MANY ISSUES, CAN THE DAMAGED LS COME BACK TO LIFE?

So you find a cheap 4.8 or 5.3 for sale on Facebook Marketplace, and take it home to clean up and put into your project car or truck, only to find that it has a bunch of issues you weren’t...

The Alfarrari Project: The Front End Is Going To Need A LOT Of Love!

With the back of the car getting all the attention recently, it is now time for Jeff to hit the front end of this one. Like the rest of this car there is a lot of original sheet metal that looks good...

Single Seat Race Car Build Part 11: A Very Riveting Portion Of The Build Is Underway

In this latest installment of the build, there is a lot going on to make the body and chassis one. The previous few videos have this thing getting lots of metal shaping happening and the body is sexy...

Polishing Turds: Part 12, Final Assembly Before Dynoing This Thing!

In this new episode of the Polishing Turds series from HED you are going to see the final assembly of the engine finally completed! Can you guess how much power it is going to make on the dyno? Pete...

Can You Grade Stainless Steel With A Magnet? Cheap Stainless Isn’t Necessarily Good Stainless

As Justin explains in this video, there are several grades of stainless steel available on the market. This is important because in our global economy there are parts being made in all these...